I have a wordpress website and I want to create a page that also has javascript and upon a certain user action the javascript calls the server with an AJAX request. This is a GET request to a php script I created. Since I extended wordpress with my plugin I put this php in my plugin's folder.
The problem is that from this php script I want to access everything that wordpress offers, e.g. the database access, but I do not know how.
What do I have to include in this php file in order to access the functions offered by wordpress? I wanted to use database access so I included the wp-db.php file and declared the global wpdb variable, but it did not help.
Can anyone tell me how to accomplish this?
Thanks in advance!